Weather at CN?

Hello! We are first timers to Couples and are coming to Negril next week - the 21st-27th. We can't wait!

However, we are concerned about it raining the entire time. The forecast shows thunderstorms everyday, although I realize in most tropical destinations a daily, afternoon, thunderstorm is the norm. Can someone advise what the weather has been like recently at CN and/or if any of the tropical waves currently in the Atlantic are expected to have any impact on Jamaica?